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Inventory And Land Held For Sale (Land Held For Sale) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Land held for sale, gross $ 38,157 $ 86,913
Net realizable value reserves (6,429) (5,421)
Land held for sale, net $ 31,728 $ 81,492